Dishwasher



Dec. 5, 1961 w. B. DELAMATER DISHWASHER 2 Sheets-Sheet -1 Filed April 6,1959 3 IIIIIIIIIII gmx INVENToR, MLM/w DELF/:4.47525 /f 7 l l Dec. 5,1961 w. B. DELAMATER DISHWASHER 2 Sheets-Sheet-Z Filed April 6, 1959 1NV EN TOR) WL L/,QM a Awans@ DISHWASHER William B. Delamater, Downey,Calif. Filed Apr. 6, 1959, Ser. No. 804,179 2 Claims. (Cl. 15--74) Thepresent invention relates to a construction which functions as adishwasher.

Often, due to limited space such as may be encountered in smallapartments, mobile type dishwashers cannot be installed. However, almostevery kitchen has a sink of some character and the present invention isadapted for placement within the sink. It is contemplated that somernotive means shall be provided for the dishwasher Wand this may takethe form of a garbage disposal unit.

Garbage disposal units now are common and are attached to the bottom ofthe sink with the mouth end thereof in communication with the drain ofsaid sink.

An object of the invention is to provide a simple effective meansadapted to be power driven and which may be positioned within the sinkfor the purpose of Washing dishes, and other culinary articles.

A further object is the provision of a device of the character statedwhich is easily removable fromor placed in a sink,twhich does notinterfere with nor in any manner cause damage to a power unit fordriving the washer, which is eflicient in operation, inexpensive incostof manufacture, and which will perform a satisfactory washing operation.y y

Other` objects will be apparent to those who have need or use for adevice of the character of this invention. v

With the above mentioned and other objects in view, the inventionconsists in the novel and useful pro-vision. formation, construction,association and relative arangement of parts, members and features, allas shown in certain. embodiments in the accompanying drawings describedgenerally and more particularly pointed out in the claims.

In the drawings:

FIGURE l is a fragmentary perspective View showing the dishwasher of theinvention within a sink;

FIGURE 2 isan enlarged View, partly in vertical section and showing anembodiment of the invention mountedwithin a sink for contact with theturntable of a garbage disposal unit;

FIGURE E',v is a fragmentary view, partly in section, taken on the line3-3 of FIGURE 2, and on an enlarged scale;

FIGURE 4 is a fragmentary, sectional View taken on the line 4 4 ofFIGURE 2;

FIGURE 5 is a cross-sectional View on the line 5-5 of FIGURE 3;

FIGURE 6 is a fragmentary, sectional view of a slightly modied form ofconstruction from that shown in FIG- URESr 1 to 5 inclusive.

Referring now to the drawings, in FIGURE 1 I have shown a sink 1 mountedbelow the drainboard Z'with the usual valve arrangement for supplyinghot and cold water to the SinkLmounted thereabove, as shown at 3s. Thesink 1 has a central drain opening 4. However,'the sink is forillustrative purposes only and may be of the divided type which has twodrain openings. The present embodiment of my invention uses one of thedrain openings. Primarily the drain opening 4 is in communicantes tionwith the interior of a garbage disposal unit 5. This garbage disposalunit is of the ordinary type in that it is provided with a strainerflange member 6 `which is secured within the opening 4 of the sink 1 anddepends beneath the said sink. Secured to said strainer flange member 6is a container body 7 of the disposal unit.

Within the container body 7 is a motor 8, the rotor shaft 9 of whichmounts a turntable 10. The top of the turntable carries the usual rotorshredder blades or elements 11, of which there may be a plurality. Therotor shredder blades cooperate with other elements so that Wastematerial may be shredded when the motor is actuated. As a rule, water ispoured into the sink for reception within the shredder 'compartment ofthe casing and outwardly thereof during a waste disposal operation. Thisbriey describes the garbage disposal unit and the same description willapply to most units now on the market.

The dishwashing devicefor use with the disposal unit includes a bridgingplate 12 resting upon the internal flange 13 of the strainer ange member6. Immediately above and supported on the bridging plate 12 islacylindrical walled gasket seal 14 having annular peripheral grooves 15 Yand centrally provided With a conical bore 16. As shown, the top of thebridging plate is provided with upstanding pins 17 which are receivedwithin the gasket seal 14 so as to hold the two members against relativerotation. The bridging plate is provided with a central screw threadedbore 17a. As stated, the gasket seal 14 and the bridging plate areplaced within the strainer flange member. The assembly for dishwashingpurposes includes top and bottom platev members 18 and 19, the rims ofwhich plates are received within an annular groove 20 of an'annulargasket 21. The top and bottom plates 18 and 19 are held apart in spacedrelationship by means of posts 22. These posts are secured between theplates in any approved manner. Interposed-between the top `and bottomplates are trains of gears. There is one central gear or pinion 23 whichmeshes with larger diameter gearsv 24 and 25 in diametric A relationshipto gear 23 and which gears 24 and 25 are mounted uponvstud shafts 26 and27 journalled in the bottom plate 19. Mounted upon the stud shafts 26and 27 and above the said gears 24 and'25 are gears 28 and 29,preferably having the same diameter as the gear 23. Meshing with thegears 28 and 29 are gears 30 and 31 which gears are suitably mounted onspindle type shafts 32 and 33 respectively, the lower ends of the shafts32 and 33 being journalled in the bottom plate 19 and extending throughbores in the top plate 18.

The'central gear 23 is mounted upon the end of a sleeve shaft 34. Asshown in FIGURE 3, the sleeve shaft is reduced in diameter at its upperend where the shaft is passed through the bottom plate 19 with the gear23 mounted in any convenient manner to said shaft. The bore 35 in saidsleeve shaft is angular sided, and in FIGURE 3 the bore is substantiallysquare in cross section, while the periphery of said shaft is circular.Surrounding the circular periphery of the sleeve shaft is a tubularsleeve 36 one end of which is provided with an annular flange 37.Included between the top plate 18 and the flange 37 is a ballbearingra'ce assembly designated generally as 38, one race member ofwhich bears against a conical side -wall 39 of the sleeve shaft.Received within the bore 35 is a shaft 40 the vupper portion of which iscomplementary to the bore 35, that is, 'angular sided or square, whilethe remaining portion is cylindrical as indicated at 41 for the squareportion of said shaft and 42 for the cylindrical portion. Thecylindrical portion of said shaft terminates in an externally threadedend 43. To mount the several elements just described, I provide a plug44 which has a multi-conical side wall as shown at 45, 46 and 47, theconical portion 46 having the same taper as the conical bore portion 48of bore 16 of gasket seal 14. The tapered wall -49 of said gasket lsealcorresponds in taper to the taper 45 of the plug 44. Depending from thelower end of the threaded at 51 for engagement with the screw threads17a of the bridging plate 12. The plug 44 is centrally bored at 52 andthis bore is of larger diameter than the internal dimension 53 of thesleeve casing 50, a construction which provides an annular shoulder at54. The sleeve 36 has its lower end resting upon the annular shoulder 54and is fitted within the bore 52. The bore 52 merges with an upper bore55 which accommodates the flange 37 and the ball race assembly 38. Thelower end of the sleeve casing 50 is internally threaded at 56. A capnut 57 is screw threaded lwithin the threaded portion 56 and thecylindrical portion 42 of the shaft projects through said cap nut asshown. Surrounding the shaft 40 and confined within the sleeve casing S0is a coil spring 53. One end of said coil spring bears against the lowerend of the sleeve shaft 34 while the opposite end bears against a washerS9 fastened to the shaft 40 for constantly urging the shaft 40 to moveoutwardly through the cap nut 57. Secured to the end of the shaft 40 isa friction shoe 60. This shoe may be formed from any suitable materialsuch as rubber, rubber composition or plastic and may assume variousgeometrical figures, that in the drawing being substantiallyfrusto-conical in form, the base wall being provided with a centralconcavity 61. The top of said shoe is provided with an inset nut 62 forengaging the threaded end 43 of the shaft. lThe shoe 60 lies between theblades 11 as shown in FIGURE 2, in frictional engagement withthe'turntable top. The concavity 61 overlies the nut 63 which securesthe Woodruff key member 64 which connects the turntable 10 with therotor shaft 9.

In the showing of FIGURE 6, I do not employ the plug 44 but utilize agasket 70 of annular form provided with the annular peripheral grooves71. The gasket 70 fits tightly within the confines of the strainerflange member 6. The central bore 72 of the gasket is of uniformdiameter. The sleeve type casing has a uniform external diameter, asshown at 73. In this construction, the internal members, to wit: shaft40, and its connection with its sleeve shaft 34 remain the same as forthe form shown in FIGURE 3, with the upper end portion of the sleeveshaft passed through the plate 119.

In the construction shown in FIGURES 1, 2, and 6, I employ a pair ofcylindrical brushes 75 and 76 and the shafts for said brushes are of thesleeve type which receive the spindle shafts 32 and 33. Any type of snapfastener may be employed for securingthe spindle shafts to the sleeveshafts of said brushes.

The operation, uses and advantages of the invention just described areas follows:

If a dishwashing operation is' to be performed, the device of theinvention, assuming the form shown in FIGURES 2 and 3, is passed throughthe gasket 14 in such a manner that the plug 44 has tight engagementwithin the conical bore thereof. Thus the tapered surface 46 of saidplug may have a tight engagement with the corresponding conical wall inthe gasket by rotating the assembly which is to say, grasping the ringgasket 21 and turning the sarne which will cause the plug to movedownwardly within gasket 14 due to the Athreaded relationship betweenthe bridging plate 12 and the sleeve casing 50. It is necessary that atight seal be provided so that when the sink 1 is filled with water,usually a soapy solution, the solution will not pass into the disposalunit. Upon insertion of the assembly within the disposal unit, the shoe60 will engage the turntable 10 whereby upon energizing the motor, theshaft 40 will be rotated. Due

to the spring 58, the shaft 40 will be urged outwardly through the capnut 57 to cause pressure engagement of the shoe 60 with said turntable10. When the motor S is energized, the gear 23 is rotated and this geardrives the train of gears, to wit: gears 24 and 25 will be rotated inopposite directions. There will be considerable reduction in the turningspeed of the brushes and 76 due to the train of gears arrangement,` andin practice the arrangement is such that if the motor rotates atapproximately 1000 r.p.m., the brushes will be rotated approximatelyr.p.m. A person desiring to clean dishes may hold the dishes againsteither brush as the brushes will be rotating in soapy solution. To cleanknives, forks, and spoons, the articles may be passed between thebrushes. In actual practice, the device has been found to quickly andefllciently clean all dishes and other culinary articles.

Upon completion of use of the device, for the washing of dishes thebrushes may be removed and cleaned, followed by the removal of thehousing which contains the gear train, the associated plug and itssleeve casing 50, and the shaft 40 carrying the shoe 60. rhereafter thebridging plate 12 and gasket 14 are removed from the strainer flangemember 6. The annular grooves '71 in one instance and 15 in the secondinstance, aid in assuring tight fit of the gaskets within the strainerflange member. The device yis small, occupies little space, and-iseasily stored.

This application covers the dishwasher alone, but broad claims are to befound in my copending application entitled Washing Device Operated byGarbage Disposal Unit, Ser. No. 138,233, iled September l2, 1961.

I claim:

1. A dishwasher for placement in the drain opening of a sink of the typethat is provided with a strainer flange and provided beneath thestrainer flange with a power driven garbage disposal unit, including: abridging plate spanning the strainer flange, the bridging plate beingformed with a screw threaded central opening, a gasket seal within thestrainer llange and resting on the bridging plate, the gasket sealformed with a conical bore, a conical surfaced plug for reception in theconical bore of the gasket seal, said conical plug provided with adepending sleeve externally threaded in part and extending through thethreaded opening ofthe bridging plate, the threads of the sleeveengaging the threads of a bridging plate whereby upon rotation of theconical plug the conical surfaces of the plug and the gasket seal arebrought into engagement to prevent luid leakage therebetween, atelescopic shaft for engagement with the power driven garbage disposalunit to rotate the shaft, means within the sink to be rotated by thetelescopic shaft and a pair of cylindrical brushes in juxtaposition andmounted on. a vertical axis for rotation by said means in oppositedirections.

2. The device of claim l, a casing for placement with-- in the sink, thecasing including: a pair. of spaced apart plates, an annular gasketsurrounding the plates, and said means confined within the casing, thebrushes being exterior the casing.

Brown et al. July 20, 1948 2,579,393 Modrey Dec. 18, 1951 2,869,794Modrey Ian. 20, 1959

